Electric regulator



May 22, 1923. 1,456,081

W. A. TURBAYNE ELECTRIC REGULATOR Filed July 17, 1919 Win} Wm. A. Turbayne WI TNESS: IN VEN TOR.

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Patented May 22, 1923.

PATENT OFFICE.

WILLIAM A. TURBAYNE, 0F NIAGARA FALLS, NEW YORK, ASSIGNOR TO U. S. LIGHT & HEAT CORPORATION, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF NEW UNITED STATES YORK.

Application filed July 17, 1919.

To all whom 2'25 may concern Be it known that I, WILLIAM A. TUR- BAYNE, a citizen of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented new and useful Improvements in Electric Regulators, of which the following is a specification.

The present invention relates to electric regulators. 1

In electrical regulators, difficulty has been encountered due to the fact that if the regu lator is made sensitive to small changes, it will have a hunting action when more considerable changes occur.

An object of the present invention is to provide an electric regulator which will be dead heat and will be sensitive to small changes.

A further object is to provide an electric regulator which is cheap to manufacture, sturdy in construction and reliable in service.

Referring to the accompanying drawings- Figure 1 represents a plan view of one embodiment of the present invention.

Figure 2 is a view in side elevation.

A pair of magnetizable cores are represented by the numerals 11. Said cores may be arranged in parallel relation and may be provided with operating solenoids 22. Co-operating with adjacent. ends of the cores l1 is an armature 3 which may be mounted upon a bell crank lever 4:- Said armature 3 may be biased by a spring 5 to a position away from the ends of the cores 1-1,. The position of the armature 8 will be determined by the attractive effect of the cores 11, which attractive elfect of the cores 1-1, is opposed by the spring 5.

, (lo-operating with the right hand ends of the cores v11 is an armature 6 which may be wedge shaped in conformation to corres 0nd to the beveled ends of the cores 1-1.

aid armature 6 may be mounted upon the lever 7 pivoted at the point 8. Said lever 7 is provided with an end portion 9 adapted. to operate one end of a compressible pile 10, the otherend of which may be fixed. It will be apparent without further description that when armature 6 is attracted to ward sores 1 1, P s u e. W ll be r leased n ELECTRIC REGULATOR.

Serial No. 311,454.

the compressible pile 10 whereby to increase the resistance of said pile. be acted upon by the spring 11, which mounted to oppose the attractive effect of the cores 1l whereby said spring 11 will bias the lever 7 to compress the pile 10. A dash-pot 12 is provided having one of its elements connected to the lever 7 whereby to damp the movement of said lever 7 and thereby damp the operation of armature 6. Bell crank lever 4 and armature 3, which cooperate with the left-hand ends of the cores 11, should be undamped, whereby to be instantly responsive to changes in the attrac tive effect of cores 11', which attractive effeet will be responsive to the magnetizing effect of the solenoids 2-2.

A mode of operation of the above described embodiment of the present inven tion will be substantially as follows: The solenoids 22 will be connected to an electric circuit to the functions of which it is desired that the compressible pile 10 shall respond. When less than a predetermined magnetizing current is flowing in the solenoids 22, the armatures 3 and 6 will both be held. away from the cores 1-1 whereby reluctance of the magnetic circuit comprising cores l-1 and armatures 3 and 6 will be a maximum. When a predetermined magnetizing eflect of the solenoids 22 is exceeded, the armature 3 being undamped, will instantly respond to decrease the reluctance of the magnetic circuit of the regulator. Armature 6 being damped by dash-pot 12, will act subsequently to the operation of the armature 3 and will assume a new position whereby to relieve pressure on the compressible pile 10. While lever 7 is assuming its new position, thereby altering the reluctance of the magnetic circuit, the armature 3 will gradually move away from the cores 1-1, whereby a position of balance will be reached without any hunting. The regulator will accordingly be dead heat. The parts will be so designed and adjusted-that armature 3 will never contact with cores 11, in service, but will always be readily available to adjust the reluctance of its magnetic circuit. In some cases, as for instance, in the case of a compressible pile of relatively great efiec-tive e th. it ar b r e ed to mit th eb- The lever 7 may pot 12. In either case, the reluctance changing member 3 operates practically instantaneously upon changes in magnetizing effect of the solenoids 2, 2 to cause a magnitying effectu on the operating member 7.

In service, the compressible pile 10 will be so connected in circuit that changes in the resistance thereof will cause a response in the electrical circuit, the function of which it is desired to control. The fact that the armature 3 is undamped, will cause a practically instantaneous setting of the magnetic reluctance of the regulator whereby the lever 7 may operate in response to either very considerable or very small changes, moving directly and with certainty to the position for exerting the proper pressure upon the compressible pile.

As noted above, the reluctance varying member 3 will assume different positions for reluctance adjusting functions, between the extreme positions, due respectively (1) to insufiicient magnetizing effect to overcome spring 5, or to high magnetizing effect a which holds member 3 close to, but spaced from cores 1, 1. This mechanism is to be. distinguished from reluctance varying means wherein a reluctance varying member occupies one of two alternate positions, to wit, that producing maximum reluctance and that producing minimum reluctance. According to the present invention, an infinite number of positions between the extremes above noted may be had. As shown in the drawing, the spring 5 is adjustable whereby to adjust the value at which member 3 shall begin its reluctance varying functions.

One example of the many uses for the prescnt invention is the following. The mech anism of the present invention may be used for varying the field excitation of a variable speed generator which is used for storage battery charging purposes. Said mechani'sm may be connected to respond to current changes in the charging mains. The spring 5 may be adjusted to a value whereby t e member 3 would not respond until the rising C. E. M. F. of the battery resulted in the raising of the voltage across the mains to a predetermined value. Said member 3 would thereafter gradually decrease the reluctance otthe magnetic circuit, resulting in a gradually increasing effectiveness per ampere turn of solenoids 2, 2, resulting in a. tapering current to the battery.

The armature 6 may be provided with a magnetic adjusting member 13. Sai'd member 13 is provided with a pair of cars 14 of magnetic material. Said cars 14 should be capable of being bent toward or away from one another, whereby to increase or decrease the reluctance of circuit com rising cores 1, 1 and armatures 3 and 6. y the simple expedient, therefore, of bending ears 14, 14,

the magnetic reluctance may be nicely adjusted. For this purpose the member 13 may be of pliable magnetic material.

What I claim as new and desire to secure by Letters Patent of the United States, is-

1. In an electric regulator, a pair of cones adapted to be magnetized, a pair of armatures adapted to complete a magnetic circuit for said cores, said armatures being biased away from said cores, a compressible pile, operating means for said pile, said operating means being operable by one of said armatures, said last mentioned armature being damped, the other of said armatures being undamped.

2. In an electric regulator, a pair of magnetizable cores, a pair of armatures adapted to complete a magnetic circuit for said was, one of said armatu'res being undamped, but being provided with resilient means op" ing the attractive effect of said cores, wh reby to var the efl'ect of said armature inaflect-ing t e reluctance of said magnetic circuit, the other of said armatures being damped, a compressible pile, and means operable by said other armature for operating said ile.

3. n combination, a variable resistance element, operating means therefor, electromagnetic means for controlling said operating means, said electro-magnetic means being provided with means for rendering said operating means dead beat, comprising quick acting means for changing the ma netic reluctance of said electro-m'agne means. 4

4. In combination, a variable resistance element, operating means therefor, electromagnetic means for controlling said 0 fliting means, and means for gradually c anging the reluctance of said electromag netic means comprising means responsive to the magnetization of said electromagnetic means. 3

5. In combination, electromagnetic means, a compressible pile, pile-operating means controlled by said electromagnetic mean's and quick acting means responsive to said electromagnetic means for varying the magnetic reluctance of said electromagnetic means, said pile operating means being pr'fivided with means to delay the action theretif.

6. In combination, a compressible pile, a pair of magnetizable cores arranged in parallel relation to said pile, a pair 'of amaztures adapted to complete a magnetic circuit with said cores, said armatuns being located at opposite ends of said cores in a position to be attracted toward the end faces of said cores, said cores being arranged horizontal! whereby said armatures will not be readi responsive to sudden jolts in a vertical direction, one of said armatures being undampdd and being adapted to vary the reluctancb of said magnetic circuit, the other of said armstures being damped and being pro-vided with means for compressing said pile.

7. In a regulator, in combination, a compressible pile, a magnetic c' 'cuit, said circuit having a quick acting member adapted to quickly adjust the magnetic reluctance of said circuit, said circuit having a damped member provided with means for operating said pile.

8. In a regulator, in combination, a compressible pile, a magnetic circuit, said circuit having a quick acting member adapted to quickly adjust the magnetic reluctance of said circuit, said circuit having a damped member provided with means for operating said pile, said damped member being provided with magnetic means for adjusting the reluctance of said circuit.

9. In an electric regulator, a pair of cores adapted to be magnetized, a pair of armatures adapted to complete a magnetic circuit for said cores, said armatures being biased away from said cores, a compressible pile, operating means for said pile, said operating means being responsive to one of said armatures, said last mentioned armature being damped, the other of said armatures being undamped, said damped armature being provided with magnetic means for adjusting the reluctance of said circuit.

10. In a regulator, in combination, a pair of cores, an armature co-operating With adacent ends of sald cores, said armature having magnetic means for adjusting the magnetic reluctance between said armature and said cores, a compressible pile and means operated by said armature for controlling said pile.

11. In a regulator, in combination, a pair of cores having beveled ends, an armature having beveled ends co-operating with and corresponding to the beveled ends of said cores, said armature having a magnetic member having ears which may be moved to change the reluctance between said cores and said armature, a compressible pile and means operated by said armature for controlling said pile.

12. In a regulator, in combination, a variable resistance element, a magnetic circuit, said circuit having a member for automatically gradually adjusting the magnetic re luctance of said circuit, said circuit having a member provided with means for operating said resistance element.

13. In combination, a variable resistance element, operating means therefor, electromagnetic means for controlling said operating means, said electromagnetic means being provided with means for rendering said operating means dead beat, comprising means for gradually changing the magnetic reluctance of said electromagnetic means.

In witness whereof, I have hereunto subscribed my name.

WVILLIAM A. TURBAYNE. 

